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The models are based on extensive experimental data of microbial behavior in liquid microbiological media and food.

There can be no guarantee that predicted values will match those that would occur in any specific food system. Before the models could be used in such a manner, the user would have to validate the models for each specific food of interest.

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Listeria monocytogenes (Broth Culture, Anaerobic, NaCl)

Input Conditions

Range: 4 to 37 °C
Range: 4.5 to 8.0
Range: 0.5 to 5.0 (% [g/dL])
Range: 0.0 to 150.0 (ppm)
Range: 1 - 6
Line chart of data points for modeled growth. Also available in a table format below the chart.
Modeled Growth Parameters
  • Max Growth Rate (log10 cfu/h):
    • Mean:0.16
    • LCL:0.14
    • UCL:0.18
  • Lag Phase Duration (h):
    • Mean:15.6
    • LCL:13.4
    • UCL:18.1
  • Maximum Population Density: 9.34 (log10 cfu/ml)
Modeled Growth
Time (h) log10 cfu/ml
Mean LCL UCL
0.00 3.003 3.002 3.003
0.50 3.003 3.003 3.004
1.00 3.004 3.003 3.005
1.50 3.006 3.004 3.007
2.00 3.007 3.005 3.009
2.50 3.009 3.007 3.012
3.00 3.011 3.008 3.015
3.50 3.014 3.010 3.019
4.00 3.017 3.012 3.023
4.50 3.020 3.014 3.029
5.00 3.024 3.017 3.035
5.50 3.029 3.020 3.043
6.00 3.035 3.024 3.052
6.50 3.042 3.028 3.062
7.00 3.049 3.033 3.074
7.50 3.058 3.038 3.087
8.00 3.068 3.045 3.103
8.50 3.079 3.052 3.120
9.00 3.091 3.059 3.139
9.50 3.105 3.068 3.161
10.00 3.120 3.078 3.185
10.50 3.137 3.088 3.211
11.00 3.155 3.100 3.240
11.50 3.176 3.113 3.272
12.00 3.198 3.127 3.306
12.50 3.222 3.142 3.343
13.00 3.248 3.159 3.383
13.50 3.276 3.177 3.426
14.00 3.307 3.196 3.472
14.50 3.339 3.217 3.520
15.00 3.374 3.240 3.572
15.50 3.411 3.264 3.626
16.00 3.450 3.290 3.683
16.50 3.491 3.317 3.743
17.00 3.534 3.346 3.805
17.50 3.580 3.376 3.871
18.00 3.628 3.409 3.938
18.50 3.678 3.443 4.008
19.00 3.730 3.479 4.081
19.50 3.785 3.516 4.155
20.00 3.841 3.555 4.232
20.50 3.899 3.596 4.311
21.00 3.960 3.639 4.391
21.50 4.022 3.683 4.473
22.00 4.085 3.729 4.556
22.50 4.151 3.776 4.641
23.00 4.218 3.825 4.727
23.50 4.286 3.876 4.813
24.00 4.356 3.928 4.901
24.50 4.428 3.982 4.989
25.00 4.500 4.037 5.078
25.50 4.573 4.093 5.168
26.00 4.648 4.150 5.257
26.50 4.723 4.209 5.347
27.00 4.799 4.269 5.437
27.50 4.876 4.330 5.526
28.00 4.953 4.392 5.615
28.50 5.031 4.455 5.704
29.00 5.110 4.519 5.792
29.50 5.188 4.583 5.880
30.00 5.267 4.649 5.967
30.50 5.345 4.715 6.053
31.00 5.424 4.782 6.139
31.50 5.503 4.849 6.223
32.00 5.581 4.917 6.306
32.50 5.659 4.985 6.389
33.00 5.737 5.053 6.470
33.50 5.814 5.122 6.549
34.00 5.891 5.191 6.628
34.50 5.967 5.260 6.705
35.00 6.043 5.329 6.781
35.50 6.118 5.398 6.855
36.00 6.192 5.467 6.928
36.50 6.266 5.536 7.000
37.00 6.339 5.604 7.070
37.50 6.410 5.673 7.139
38.00 6.481 5.741 7.206
38.50 6.551 5.809 7.271
39.00 6.620 5.877 7.336
39.50 6.688 5.944 7.398
40.00 6.755 6.010 7.459
40.50 6.821 6.077 7.519
41.00 6.886 6.142 7.577
41.50 6.949 6.207 7.634
42.00 7.012 6.272 7.689
42.50 7.073 6.335 7.742
43.00 7.133 6.398 7.795
43.50 7.193 6.461 7.845
44.00 7.250 6.523 7.895
44.50 7.307 6.584 7.943
45.00 7.363 6.644 7.989
45.50 7.417 6.703 8.035
46.00 7.471 6.762 8.079
46.50 7.523 6.819 8.121
47.00 7.574 6.876 8.163
47.50 7.624 6.932 8.203
48.00 7.672 6.988 8.242
48.50 7.720 7.042 8.280
49.00 7.766 7.095 8.316
49.50 7.812 7.148 8.352
50.00 7.856 7.200 8.386
50.50 7.899 7.250 8.419
51.00 7.941 7.300 8.451
51.50 7.982 7.349 8.482
52.00 8.022 7.397 8.513
52.50 8.061 7.445 8.542
53.00 8.099 7.491 8.570
53.50 8.136 7.536 8.597
54.00 8.172 7.581 8.624
54.50 8.207 7.624 8.649
55.00 8.241 7.667 8.674
55.50 8.274 7.709 8.698
56.00 8.307 7.750 8.721
56.50 8.338 7.790 8.743
57.00 8.369 7.830 8.764
57.50 8.398 7.868 8.785
58.00 8.427 7.906 8.805
58.50 8.455 7.943 8.824
59.00 8.483 7.979 8.843
59.50 8.509 8.014 8.861
60.00 8.535 8.048 8.878
60.50 8.560 8.082 8.895
61.00 8.584 8.115 8.911
61.50 8.608 8.147 8.927
62.00 8.631 8.179 8.942
62.50 8.653 8.209 8.957
63.00 8.674 8.239 8.971
63.50 8.695 8.268 8.984
64.00 8.716 8.297 8.997
64.50 8.735 8.325 9.010
65.00 8.754 8.352 9.022
65.50 8.773 8.379 9.034
66.00 8.791 8.404 9.045
66.50 8.808 8.430 9.056
67.00 8.825 8.454 9.066
67.50 8.842 8.478 9.076
68.00 8.858 8.502 9.086
68.50 8.873 8.525 9.096
69.00 8.888 8.547 9.105
69.50 8.902 8.568 9.113
70.00 8.916 8.590 9.122
70.50 8.930 8.610 9.130
71.00 8.943 8.630 9.138
71.50 8.956 8.650 9.145
72.00 8.968 8.669 9.152
72.50 8.980 8.687 9.159
73.00 8.992 8.705 9.166
73.50 9.003 8.723 9.173
74.00 9.014 8.740 9.179
74.50 9.025 8.757 9.185
75.00 9.035 8.773 9.191
75.50 9.045 8.789 9.196
76.00 9.054 8.804 9.202
76.50 9.063 8.819 9.207
77.00 9.072 8.834 9.212
77.50 9.081 8.848 9.216
78.00 9.090 8.862 9.221
78.50 9.098 8.875 9.226
79.00 9.106 8.888 9.230
79.50 9.113 8.901 9.234
80.00 9.121 8.913 9.238
80.50 9.128 8.925 9.242
81.00 9.135 8.937 9.245
81.50 9.141 8.948 9.249
82.00 9.148 8.960 9.252
82.50 9.154 8.970 9.256
83.00 9.160 8.981 9.259
83.50 9.166 8.991 9.262
84.00 9.172 9.001 9.265
84.50 9.177 9.011 9.268
85.00 9.183 9.020 9.270
85.50 9.188 9.029 9.273
86.00 9.193 9.038 9.275
86.50 9.198 9.046 9.278
87.00 9.202 9.055 9.280
87.50 9.207 9.063 9.282
88.00 9.211 9.071 9.285
88.50 9.215 9.079 9.287
89.00 9.220 9.086 9.289
89.50 9.224 9.093 9.291
90.00 9.227 9.100 9.292
90.50 9.231 9.107 9.294
91.00 9.235 9.114 9.296
91.50 9.238 9.120 9.298
92.00 9.241 9.127 9.299
92.50 9.245 9.133 9.301
93.00 9.248 9.139 9.302
93.50 9.251 9.145 9.304
94.00 9.254 9.150 9.305
94.50 9.257 9.156 9.306
95.00 9.259 9.161 9.308
95.50 9.262 9.166 9.309
96.00 9.265 9.171 9.310
96.50 9.267 9.176 9.311
97.00 9.270 9.181 9.312
97.50 9.272 9.185 9.313
98.00 9.274 9.190 9.314
98.50 9.276 9.194 9.315
99.00 9.278 9.198 9.316
99.50 9.280 9.202 9.317
100.00 9.282 9.206 9.318
Source:

R.L. Buchanan, H.G. Stahl and R.C. Whiting, Effects and Interactions of Temperature, pH, Atmosphere, Sodium Chloride, and Sodium Nitrite on the Growth of Listeria monocytogenes:  Journal of Food Protection (1989) 52(12):844-851.

R.L. Buchanan and J.G. Phillips, Response Surface Model for Predicting the Effects of Temperature, pH, Sodium Chloride content, Sodium Nitrite Concentration, and Atmosphere on the Growth of Listeria monocytogenes.:  J. Food Protection (1990) 53:370-376.